含有碳化再生骨料的混凝土的耐久性：综合评述

IF 10.8 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Cement & concrete composites Pub Date : 2024-11-25 DOI:10.1016/j.cemconcomp.2024.105865

Tong Zhang , Jiaze Cui , Meng Chen , Jinlai Yang , Zhiguo Yan , Mingzhong Zhang

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引用次数: 0

摘要

越来越多的人认为，在混凝土中使用碳化再生骨料是在建筑环境中封存二氧化碳和提高混凝土可持续性的有效策略。本文在综述了碳化再生混凝土骨料在混凝土力学性能中的作用之后，全面综述了碳化处理对再生混凝土骨料化学成分和物理性能的影响，以及碳化再生混凝土骨料在微观结构和耐久性相关性能（包括体积变形、运输性能、耐化学性、耐冻融性和耐火性）中的作用。考虑到预处理方法、置换水平、养护龄期、水胶比和原始骨料质量的影响，重点研究了碳化再生骨料混凝土的微观结构与耐久性相关性能之间的关系。本综述深入探讨了碳化再生骨料混凝土的劣化机理以及提高其耐久性的策略。本综述总结了该领域的最新进展，随后讨论了未来研究仍面临的挑战和机遇。

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Durability of concrete containing carbonated recycled aggregates: A comprehensive review

The utilisation of carbonated recycled aggregates in concrete has been increasingly considered as an effective strategy for CO₂ sequestration in the built environment and enhancement of concrete sustainability. Following up a pervious review on the role of carbonated recycled concrete aggregates in the mechanical properties of concrete, this paper presents a comprehensive review on the effects of carbonation treatment on the chemical compositions and physical properties of recycled concrete aggregates, as well as the role of carbonated recycled concrete aggregates in microstructure and durability-related properties including volume deformation, transport properties, chemical resistance, freeze-thaw resistance and fire resistance of concrete. A special focus is placed on the relationship between microstructure and durability-related properties of carbonated recycled aggregate concrete considering the effects of pre-treatment method, replacement level, curing age, water-to-binder ratio and quality of the original aggregates. The insights into the deterioration mechanism and strategies for improving the durability of carbonated recycled aggregate concrete are provided. This review summarises the recent advances in the field, followed by a discussion on the remaining challenges and opportunities for future research.

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来源期刊

Cement & concrete composites 工程技术-材料科学：复合

CiteScore

18.70

自引率

11.40%

发文量

459

审稿时长

65 days

期刊介绍： Cement & concrete composites focuses on advancements in cement-concrete composite technology and the production, use, and performance of cement-based construction materials. It covers a wide range of materials, including fiber-reinforced composites, polymer composites, ferrocement, and those incorporating special aggregates or waste materials. Major themes include microstructure, material properties, testing, durability, mechanics, modeling, design, fabrication, and practical applications. The journal welcomes papers on structural behavior, field studies, repair and maintenance, serviceability, and sustainability. It aims to enhance understanding, provide a platform for unconventional materials, promote low-cost energy-saving materials, and bridge the gap between materials science, engineering, and construction. Special issues on emerging topics are also published to encourage collaboration between materials scientists, engineers, designers, and fabricators.